Home / 13,728,330.68-18,945,098.68-7,616,744.60

Finding the Fourth Proportional to 13,728,330.68, 18,945,098.68 and 7,616,744.60

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Solution

The fourth proportional to 13,728,330.68, 18,945,098.68 and 7,616,744.60 is: 10,511,108.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,728,330.68 : 18,945,098.68 = 7,616,744.60 : x
  2. Step 2: Convert to fraction form
    13,728,330.68/18,945,098.68 = 7,616,744.60/x
  3. Step 3: Cross multiply
    13,728,330.68x = 18,945,098.68 × 7,616,744.60
  4. Step 4: Simplify right side
    13,728,330.68x = 144,299,978,067,357.12
  5. Step 5: Solve for x
    x = 144,299,978,067,357.12/13,728,330.68
  6. Step 6: Final answer
    x = 10,511,108.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.